The Balloon Time Disposable Helium Tank is an indispensable item to keep on hand. We have used them frequently for children's parties, graduation parties, retirement parties and more. They can make a party on a budget easy to do without adding too much cost. A balloon bouquet can be expensive when purchased at a party store. One Mylar balloon surrounded by a group of regular balloons can be a big deduction from the event fund when purchased from a store. You can use the savings for other party decorations, the cake or other refreshments, or an additional gift for the party recipient. The Dollar Tree will sell you each Mylar balloon for only a dollar each but they do not sell and refuse to fill the regular balloons for you. You can purchase 5 event balloons, such a birthday, retirement, or other party occasion and an inexpensive bag of regular balloons and have 5 separate balloon bouquets with each Mylar balloon surrounded by the inexpensive multiple colored balloons that you can fill yourself from the Balloon Time Disposable Helium Tank. I usually keep them on hand for events such as that and to fill the remote controlled helium animals that my grandson likes to play with.